Espaços nominais
Variantes
Acções

std::atomic::operator+=,-=,&=,|=,^=

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< cpp‎ | atomic‎ | atomic

 
 
Biblioteca operações atômica
Tipos
Original:
Types
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atomic(C++11)
atomic_is_lock_free(C++11)
Funções
Original:
Functions
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atomic_store
atomic_store_explicit
(C++11)
(C++11)
atomic_load
atomic_load_explicit
(C++11)
(C++11)
atomic_exchange
atomic_exchange_explicit
(C++11)
(C++11)
atomic_compare_exchange_weak
atomic_compare_exchange_weak_explicit
atomic_compare_exchange_strong
atomic_compare_exchange_strong_explicit
(C++11)
(C++11)
(C++11)
(C++11)
atomic_fetch_add
atomic_fetch_add_explicit
(C++11)
(C++11)
atomic_fetch_sub
atomic_fetch_sub_explicit
(C++11)
(C++11)
atomic_fetch_and
atomic_fetch_and_explicit
(C++11)
(C++11)
atomic_fetch_or
atomic_fetch_or_explicit
(C++11)
(C++11)
atomic_fetch_xor
atomic_fetch_xor_explicit
(C++11)
(C++11)
Bandeiras atômicas
Original:
Atomic flags
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atomic_flag(C++11)
atomic_flag_test_and_set
atomic_flag_test_and_set_explicit
(C++11)
(C++11)
atomic_flag_clear
atomic_flag_clear_explicit
(C++11)
(C++11)
Inicialização
Original:
Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
Memória de encomenda
Original:
Memory ordering
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memory_order(C++11)
kill_dependency(C++11)
atomic_thread_fence(C++11)
atomic_signal_fence(C++11)
 
std::atomic
Funções de membro
Original:
Member functions
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atomic::atomic
atomic::operator=
atomic::is_lock_free
atomic::store
atomic::load
atomic::operator T
atomic::exchange
atomic::compare_exchange
Membro funções especializadas
Original:
Specialized member functions
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atomic::fetch_add
atomic::fetch_sub
atomic::fetch_and
atomic::fetch_or
atomic::fetch_xor
atomic::operator++
atomic::operator++(int)
atomic::operator--
atomic::operator--(int)
atomic::operator+=
atomic::operator-=
atomic::operator&=
atomic::operator|=
atomic::operator^=
 
T operator+=( T arg );
T operator+=( T arg ) volatile;
(1) (único membro da atomic<Integral> especialização modelo)
(a partir do C++ 11)
T* operator+=( std::ptrdiff_t arg );
T* operator+=( std::ptrdiff_t arg ) volatile;
(1) (único membro da atomic<T*> especialização modelo)
(a partir do C++ 11)
T operator-=( T arg );
T operator-=( T arg ) volatile;
(2) (único membro da atomic<Integral> especialização modelo)
(a partir do C++ 11)
T* operator-=( std::ptrdiff_t arg );
T* operator-=( std::ptrdiff_t arg ) volatile;
(2) (único membro da atomic<T*> especialização modelo)
(a partir do C++ 11)
T operator&=( T arg );
T operator&=( T arg ) volatile;
(3) (único membro da atomic<Integral> especialização modelo)
(a partir do C++ 11)
T operator|=( T arg );
T operator|=( T arg ) volatile;
(4) (único membro da atomic<Integral> especialização modelo)
(a partir do C++ 11)
T operator^=( T arg );
T operator^=( T arg ) volatile;
(5) (único membro da atomic<Integral> especialização modelo)
(a partir do C++ 11)
Atomicamente substitui o valor da corrente com o resultado do cálculo que envolve o valor anterior e arg. A operação é ler-modificar-escrever operação.
Original:
Atomically replaces the current value with the result of computation involving the previous value and arg. The operation is read-modify-write operation.
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1)
Executa adição atômica. Equivalente a fetch_add(arg).
Original:
Performs atomic addition. Equivalent to fetch_add(arg).
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2)
Executa subtração atômica. Equivalente a fetch_sub(arg).
Original:
Performs atomic subtraction. Equivalent to fetch_sub(arg).
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3)
Executa bit a bit atômica e. Equivalente a fetch_and(arg).
Original:
Performs atomic bitwise and. Equivalent to fetch_and(arg).
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4)
Executa bit a bit atômica ou. Equivalente a fetch_or(arg).
Original:
Performs atomic bitwise or. Equivalent to fetch_or(arg).
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5)
Executa atômica bit a bit exclusivo ou. Equivalente a fetch_xor(arg).
Original:
Performs atomic bitwise exclusive or. Equivalent to fetch_xor(arg).
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Para os tipos de Integral assinados, a aritmética é definida para usar dois representação de complemento. Lá
Original:
For signed Integral types, arithmetic is defined to use two’s complement representation. There
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há resultados indefinidos. Para os tipos de T*, o resultado pode ser um endereço indefinido, mas as operações de outra forma não têm um comportamento indefinido.
Original:
are no undefined results. For T* types, the result may be an undefined address, but the operations otherwise have no undefined behavior.
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Índice

[editar] Parâmetros

arg -
o argumento para a operação aritmética
Original:
the argument for the arithmetic operation
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[editar] Valor de retorno

O valor resultante.
Original:
The resulting value.
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[editar] Exceções

noexcept specification:  
noexcept
  (a partir do C++ 11)

[editar] Veja também

aumenta ou diminui o valor atômico por um
Original:
increments or decrements the atomic value by one
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(função pública membro) [edit]